On the evaluation of the suitability of the materials used to 3D print holographic acoustic lenses to correct transcranial focused ultrasound aberrations
Marcelino Ferri, José M. Bravo, Javier Redondo, Juan V. Sánchez-Pérez, Noé Jiménez, Sergio Jimenez-Gambín, Francisco Camarena
The correction of transcranial focused ultrasound aberrations is a relevant topic for enhancing various non-invasive medical treatments. Nowadays, the most widely accepted method to improve focusing is the emission through multi-element phased arrays; however, a new disruptive technology, based on 3D printed holographic acoustic lenses, has recently been proposed overcoming the spatial limitations of phased arrays due to the submillimetric precision of the latest generation of 3D printers. This works aims to optimize this recent solution; particularly, the preferred acoustic properties of the polymers used for printing the lens are systematically analyzed, paying special attention to the effect of p-wave speed and its relationship to the achievable voxel size of 3D printers. Results from simulations and experiments clearly show that there are optimal ranges for lens thickness and p-wave speed, fairly independent of the emitted frequency, the transducer aperture, or the transducer-target distance, given a particular voxel size
Automatic Aberration Correction for Transcranial Functional and Super-Resolution Ultrasound Imaging in Rodents and Nonhuman Primates
Polytechnique Montréal（蒙特利尔高等工程学院）；Université de Montréal（蒙特利尔大学）；Centre interdisciplinaire de recherche sur le cerveau et l’apprentissage (CIRCA)（大脑与学习跨学科研究中心）；Montreal Heart Institute（蒙特利尔心脏研究所）
Inverse Problem Approach to Aberration Correction for in vivo Transcranial Imaging Based on a Sparse Representation of Contrast-enhanced Ultrasound Data
Polytechnique Montréal（蒙特利尔高等理工学院）；Université de Montréal（蒙特利尔大学）；Montreal Heart Institute（蒙特利尔心脏研究所）
Whole-skull acoustic transparency from a single time-reversal solve for reciprocity-based transducer placement and aperture optimization in transcranial focused ultrasound
Lampe Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University（北卡罗来纳大学教堂山分校与北卡罗来纳州立大学联合兰佩生物医学工程系）
An Angular Spectrum Method for Nonlinear Propagation in Heterogeneous Tissue with Immersed Sources for Ultrasound
Lampe Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University（北卡罗来纳大学教堂山分校与北卡罗来纳州立大学生物医学工程联合兰珀系）
Wavefront Shaping of Ultrasound Vortex through the Human Skull Enabled by Binary Acoustic Metasurfaces
School of Engineering Medicine, Beihang University（北京航空航天大学工程医学院）；Beijing Advanced Innovation Center for Biomedical Engineering（北京生物医学工程高精尖创新中心）；Shenzhen Institute of Beihang University（北京航空航天大学深圳研究院）
